cayen



(No Model.)

J. OAVEN.

DOMESTIC WATER PURIFIER.

-No. 441,826. r Patented Dec. 2, 1890.

UNITED STATES PATENT FFICE.

JOHN CAVEN, OF INDIANAPOLIS, INDIANA.

DOMESTIC WATER-PURIFIER.

SPECIFICATION forming part of Letters latent N 0. 441,826, dated December 2, 1890.

Application filed May 1'7, 1890. Serial No. 352,117. (No model.)

To all whom it may concern:

Be it known that 1, JOHN OAVEN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improvement in Domestic lVater-Purifiers, o t which the following is a specification.

My invention relates to an improved means for purifying water by distillation for domestic use.

The objects of my improvement are to provide a still which is adapted to furnish acontinuous supply of hot and cold distilled water for domestic purposes, the still being so constructed that the retort or boiler maybe conveniently refilled, the vaporized water quickly condensed, and the heat discharged from the vaporized water in the process of condensation may be utilized, all as hereinafter described.

The acoompanyin g drawings illustrate my invention.

Figure 1 represents a vertical longitudinal section of the entire apparatus. Fig. 2 represents a vertical transversesection at a, Fig. 1.

The retort or boiler, into which well or cistern water is put for distillation, consists of a vessel A, preferably cylindrical, having an open top and a bottom adapted to fit into one of the openings in the top of an ordinary cooking stove, (represented by the section B.) The top of vessel A is closed by a removable cover 0, having on its under side a narrow annular flange d, which fits easily within the vessel, and having also a central depressed funnel-shaped portion D, which terminates in a cylindrical spout E, having parallel sides. The upper edge of vessel A is provided with an inwardly and upwardly projecting flange F, which forms, with the outside of the vessel, an annular space It, the a1 rangement being such that the flange d of the cover enters said annular space, and the top edge of flange F falls at little short of the under side of the cover, thus leaving a narrow space '6, though which steam from the vessel passes into the space it, and condensing there automatically forms a water seal around the flange d.

J is a pipe for conveying the steam to the condenser. Pipe J is nicely fitted, so as to slide in spout E and stand at any point therein, and is perforated, as at it, near its lower end.

The condenser is constructed as follows: L L L are a series of hollow plates, each having at one end adeflecting'partition m extending a part of the length and entirely across the width of the plate at one end and arranged centrally between the topand bottom. Each hollow plate is provided at opposite ends on the top with a pair of short inlet-pipes o and pand apair of outlet-pipes r and s on the bottom arranged opposite pipesoand p. All of said pipes are slightly tapered, and the arrangement is such that the outlet-pipes'rand s fit, respectively, int-o the inlet-pipes o and p, and each plate is also provided with short legs t i, so that when several of the plates are placed one above the other a series of broad shallow chambers is formed, said chambers being connected at each end by the pipes 0 r and p s, and having open spaces a between them, through which air may freely circulate. I have shown but three of the plates L; but it is intended to use ten or fifteen, or so many as may be necessary to sufficiently cool the water of condensation by the time it reaches the lower plate.

The series of hollow plates Lis mounted on the top of and in communication with a reservoir V, one end of which projects beyond the plates, and is provided with a cover 20 and a depressed bottom 00, so that all of the water collecting in the reservoir may be conveniently dipped therefrom. The upper plate of the series is connected with the retort A by the bent pipeJ. For the purpose of utilizing a portion of the heat given off by the condensing steam I mount a water-reservoir you the top plate of the series. Said reservoir is provided with a removable cover .2, a funnel l to receive new supplies of water, a gageglass 2, and a faucet 3, and is connected with the boiler A by a pipe 6, having a stop-cock '7. Reservoir V and vessel A are also provided with gage-glasses & and 5.

The operation of my device is as follows: Vessel A and reservoir 3 are each partly filled with water, and pipe J is arranged in the position shown in full lines, Fig. 1, connecting the vessel A and the upper plateL of the con- ICO denser, communication between vessel A and reservoir y through pipe 6 being cut off by closing stop-cock 7. Heat being applied under vessel A, the water is vaporized and passes over to and enters the upper plate L, where it strikes the deflector m, and is projected along the plate beneath the reservoir y, and then returning beneath the deflector m passes downward into the next plate th rough the outlet-pipe r and inlet-pipe to the next plate, and so on' through the series, or until the steam is all condensed. A portion o f the vapor passes over the edge of flange F into the annular space It, and being there condensed forms a water seal to the cover. As the steam circulates its heat is rapidly taken up by the hollow plates and transmitted first to the water in reservoir y and then to the air circulating between and around the plates, so that a room might be heated thereby. The condensation of the steam is rapid and is complete before the reservoir V is reached. The Water of condensation passes directly from plateto plate and to the reservoir-V through the pipes s and p and does not interfere with the free circulation of the steam. When the device is fairly in operation, cold water may be dipped from reservoirV and hot water may be drawn from reservoir y. When it is necessary to replenish the water in vessel A, the stopcock 7 is opened and a portion of the water in reservoir y'is allowed to flow into the boiler A, and the stop-cock being closed the reservoir is refilled with cold water. By this means a portion of the heat which passes from boiler A in the steam is returned to the boiler in the hot water drawn from reservoir 1 and a considerable saving of fuel is thereby effected. When more Water is needed in the boiler than can be supplied from reservoir y, the funnel D in cover C is filled with water, and pipeJ is then raised to the position shown in dottedlines, thus bringing the perforations 70 above the spout E and establishing communication between funnel D and the interior of the boiler, so that the Water flows into the boiler and all danger of scalding the operator by escaping steam is avoided.

I claim as my invention In a water-purifier, the combination of the series of hollow plates L, having their interiors connected at opposite ends and each provided at one end with the transverse partition 'm, and the reservoir V, arranged beneath and projecting beyond said series of plates, said projecting portion having the cover w and depressed bottom or, as and for the purpose set forth.

J OIIN CAVEN. Witnesses:

H. P. Hoon, .V. M. Hoon. 

